Suspended Hydrant Armor with Inverse Taper and Bracket
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Solution Overview
Problem
Existing fire hydrant enclosures are inefficient in providing quick access during snow and ice accumulation, as they often become frozen to the ground, air-locked, or bound in snow, requiring excessive time to uncover and maintain, and lack effective attachment methods.
Innovation Solution
A suspended, inversely tapered enclosure with an integral bracket for tool-free attachment and air vents to prevent freezing and binding, ensuring quick access and protection from corrosive elements, featuring reflective visibility aids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the enclosure is set on the ground to protect the hydrant, then the hydrant is protected from corrosive elements, but the enclosure becomes frozen to the ground during thaw and refreeze cycles, rendering the hydrant inaccessible
Solution Approach 1:
The enclosure is elevated off the ground by approximately 6 inches using an integral bracket that attaches to the hydrant body, transitioning from ground-level contact to aerial suspension. This dimensional change prevents the enclosure from freezing to the ground while maintaining protection benefits, allowing firefighters to access the hydrant even during freeze-thaw cycles.
2Stability of the object's composition
If the enclosure has a wider bottom diameter than top diameter to provide stability, then the enclosure is stable, but the enclosure becomes bound in deep snow accumulation
Solution Approach 1:
The enclosure geometry is inverted from the conventional design, featuring a smaller bottom diameter than top diameter. This inverse taper prevents snow accumulation from binding the enclosure during deep snow events, while the integral bracket provides the necessary stability and attachment to the hydrant, eliminating the need for a wide base.
3Strength
If the enclosure is made of heavy material like cast iron for durability, then the enclosure is strong and protective, but the enclosure requires multiple firefighters to remove and becomes difficult to operate quickly
Solution Approach 1:
The enclosure material is changed from heavy cast iron to lightweight high-density polyethylene, reducing the weight by approximately 70-80%. This parameter change maintains sufficient strength and durability for protection while enabling a single firefighter to remove the enclosure quickly during emergency responses, improving operational efficiency.
4Object-affected harmful factors
If the enclosure is tightly sealed to protect from elements, then the hydrant is protected from corrosion, but the enclosure becomes air-locked in frozen snow, preventing removal
Solution Approach 1:
The enclosure design incorporates air vents that segment the sealed environment, allowing air circulation between the interior and exterior. This segmentation prevents air-locking during freeze-thaw cycles while maintaining protection from corrosive elements, enabling easy removal of the enclosure by firefighters even in snowy conditions.
Data Source
AI summary
HYDRANT ARMOR is an enclosure that protects fire hydrants from all weather and environmental conditions and has light reflective features incorporated on the exterior of the enclosure to ensure its visibility in darkness. When fitted with a tall reflective post, fire hydrants can be located even when they are covered in snow. Hydrant valves and hose connection caps are protected from natural elements and corrosion while they are within the hollow enclosure. The enclosure is suspended off the ground so as not to become frozen to the ground, and is held in place with an integral bracket that is attached to the hydrant. The open bottom of the enclosure fits over and locks onto the bracket and can be removed from the hydrant without tools. The conical shape of the enclosure, tapered at the bottom, will prevent the enclosure from binding in deep snow.